QuizPoll
constructor( id: PollId, question: String, textSources: List<TextSource> = emptyList(), options: List<PollOption>, votesCount: Int, correctOptionId: Int? = null, explanation: String?, explanationTextSources: List<TextSource> = emptyList(), isClosed: Boolean = false, isAnonymous: Boolean = false, scheduledCloseInfo: ScheduledCloseInfo? = null)